Sand-blast barrel



SAND BLAS T BARREL Filed'Jan. 1926 5 Sheets-Shee l April 23, 1929. v HU 1,710,167

SAND BLAS '1 BARREL Filed Jan. 1926 5 SheetsSheet 2 z M G 28 45 0 40 ;J Q76 e I -mfl v, I I I I 34mm xiii-9E5?? w am April 23, 1929. F L 1,710,167

SAND BLAST BARREL Filed Jan. 1926 s Sheets-Sheet 5 atto'nnug rATENT OFFICE.

zitiianrnan R-YLANDY A ooteronn'rlon on MARYLAND.

ASSIGNOB TO PANGBORN CORPORA- QAI'TD BLAST BARREL.

Application f led January ,lihc invention rclatra to an abradii'ig nia- (hino which though ol her abrasives than sand grenrrally lined at the prenent time, is mm in the trade 2 a wind blast ll'lilCllll Or The machine 021;--!:-;ts oi a rotary cont H101 or barrri. in which earnings or other articles to be cleaned or otherwise abraded, are placed, the rotation oi the barrel. serving to prcwini; them in (to of the illl'll at the nu load and or The bardrivi then: to the hint rel; .d g incanx eta, are preferably one d. within a (iuHi. and the barrel has at its axial end, openii nthe admission of the abrasive air under pressure and abrasive, known a--r a Sti'liil blast which is directed in any emit hie manner at the e poscd -turi'aro o? the pre 'erably an de- H V .H'Ilbtll in my (so-pends: apnli tion, maria] lao. 70,2300, tiled January or 192125, the machine,

22 ulmwin brine; oi the diieet rernure type.

The barrel or retai'y t: at he is tilled to a littlelens: h n halt or its tull internal volume or capnri y with CflHililgi'H to be cleaned and rolntwh the s nd blar'l being directed into the barrel by v, I oi the openn he centre oi the bi: bein in new" with the iisiiml prnn m :wl lhid to lil'lO oilhe enpohwl ouriare l load.

Eihilc tl Q- plied or oi the 0). in that a (ifiiliin i8 aplied to the centre are in load, the i'act a} portion of the abrasive 'iarticlca are (lb: theentire operation due to divergence oi he stream and. fwllliltilllllfjb moving his siieed more or iess in the di' re'- ono-f the z the barrel iinpii ng:

l barrel with t he resi'ilt at the wear of 0 ends: in mecca th y are lined l l his; w 3:01 on imp tor. I

The liner n 111' pl; I wh ch are n. feature oi the present invention re :made in scetioiri of such -ize that tl'iey can be 'flfQFl'Pl in the barrel through the dumping); door opening,

and the casii'ig in provided with doors or renrrel or container at 3. To protect 5, 1925. Serial No. 79,301.

n'iovable panels opposite the ends of the barrel, and no located that by turning the barrel, all oi" the bolts by which the liner plates are secured can be brought opposite the open mg of the casing and conveniently tightened or removed, being;- thus in turn inade accessible both from within the barrel and from Outside the casing throijigh the panel. This arrangement overcomes the di'll'iculty as to frequent dismantling of the machine to replace the end liner wear plates by making it tl'eanible to remove and replace them instantaneously while the machine is otherwise fully resembled. i I Another (lilllculty which iisoivercou'ie by thepreecnt invention is due to the tendency he casting-a, particularly when long Sllll'l ings are beingtreated, to work into the 01 Mining around the nozzle and become w l d where they block and deflect the sive Htlfllll'l or l. reak'tl1e nozzle, and the themselves are ground up and deof then/i, the duni iing doors are made of a ii in the direction of the circumference which is comparatively small, and there has been a tendency in dumping, on the part of llec-a l'ings to hang in the barrel around the ed 1 oi" the opening, in volving the necessity 'l'ortl'ie rather awkward operation of clearthe barrel by raking; the castings to and over the c e oi the or ening; to complete the discharge. This in expensive in time.

In the prenent instance this dii'lioulty has been. oa'ercozno by the provision of a chute in the atuie of a flat wall. which fills a chord of thebarrel adjacent the dumping opening, which chntc in. dumping prevents hanging of the castings in the barrel and avoids the a the door 01 euing in plac or the saeit or hoe.

I barrel with liner plates and chute essential to an mule appaatus illustated 00111131 J.

as mounted i;

which hangs the cash s at the edge of the door in the dumping o )G 'ation as now performed.

In the accompanying drawing 1 have illustrated a sand blast or abra ling machine in accord- 'JOl ions of the ance withthe invention and t p re r arded as casing structure, etc, which rstaudur J 1: or the hive tion.

In the drawing y V Figure 1 is an elevation oi 'a sand blast barrel in. accordance with the invention, certain portions being broken away to illu ate the liner wear plates. The figure also shows in section the ad'acent portion of the casing.

Figure 2 is a section on the 2, Figure 1 looking to the left in said figure.

Figure 3 a fragm ntary line c section on the line 3-3 oi Figure 2 on a somewhat larger scale. I

Figure 4 a more or less diagrammatic View of the apparatus in dumping position, the same being in the i ature ot a section on line 2 Figure 1.

Figure 5 is view showing the barrel partly in front elevation an i partly broken away showing a central .(i. on on the line 5 of Figure 1, this figure also being, in dumping position.

Refe ring each of whiel 1 similar parts n the diiiere it 1 glues the portion of the alu'ading machine or i iscs or casing or housing 1 of she t steel and tary container or barrel 2.

The barrel is shown as cylindrical l nd provided at the ends with circular bands or tracks 3 encircling the barrel and concentric therc with, the barrel being supported and driven in rotation by rollers i and 5, respectively, one being a supporting and iheother bei;

drivingroller.

The heads or al ends of the barre: formed with opcuiu 7 preferably co ce with the axis for the z dmission oi the z stream or blast by way of the nozz e 8 shown the ball 9, which is in turn mounted in the rotatable supporting plate 11 as described in the applicants co-pending application No. 795300., This support 11 carrying the nozzle is in the form of the invention shown mounted in or on a removable panel or door 14: which closes a correspout iug equivalent niann placed in fiat POL,

i do casing. The panel opening 1 a feature operating in combination with other features of the invention as hereinafter described.

1 The barrel. or rotary container 2 is covered or p'otectea'l as to the inner surfs :es of the cnd-wa is 6 by, removable liner wear plates 18 which are held in position by any convenient type of fastening 11 cans as bolts 17 and nuts lS'so arranged as to properly muiiport the plates and at the same time to beaccessible when the machine is assembled, from both inside the barrel and outside the bruising or ca g bolts being accessible trom the inside-by u of the barrel door opening or dumping opening 19 and itroni outside the the panel opening l5 which,

opening 15 n t barrel by way oi as a'i ores id, is o e in the term oi panel opening 15 of the plate 1 angieirons 2 ward at right a the other 161 plate and secured has edge per} the form of a flange L ued for this purpose.

the luv ion shown the v1e oeeningby g turned outdo at and itside ot the L -'L wine 1 its ins flange in the opeuh g, and the hinges may, r "Led togct ier 1D the closed 'l. desired, be secu position; 0 incl by inans o i bolts 26.

in order that the liner wear plates 16 nay, as expl cm replaced with out disa .c 7 other part of the maclun-e, tit. i Side the barrel. or rotary contain-i through door ope; l9 and to thi, wear p r 28 as s The shape,.:ize and arr may be widely 'aried. i l c be of such du iens' t Likewise after h been moving the nuts 18, they in through the same opening.

It will thus be apparent that the loss of time or" the workmen and plant incident to remoring the liner wear plates and replacing then has been reduced to the minimum by tin do velopmentof the features just described. which make it possible to instantaneously remove and replace the plates without i i any way dismantling the machine. ii hilc the c):- cess've wear at this point is 1 source or uneliminated.

A further important feature of the improved wear piatcs resides in the provision oi a deflecting abutment 30 adjacent the vertex of each plate or section 28 or more particularly surrounding the openings 7 at the centres which ini eht interfere With the coiupie e lisof the axial ends ot the barrel and mljeeent andparellel to the curved edges 31 oi? the wear plates. This deflecting ehutnient is shown in the form of an annular ridge or shoulder in the casting surrounding; he opening. I i

The ehutinent or shoulder serves during rotation of the herrel with consequent weeving, mixing and turning of the contents, to dellecl {he ling (ill! the Eur/rile o iiug This n'events thezn .LLOlll inte lining with the i stream. and also prevents them pertieulziriy the narrow slender castings from rntering the opening bets en the nozzle :uid the ed sg' is oi the barrel Willis end lining;- who; e they tend to injure the nozzl. end l. ec.ome groun d up an d destroyed.

Reference hes e 'eudy been made to the herrel door and di. .J'ge or dun'iping openin l 9 through which the cestine's ere reu'ioved door open in lliis delie point innuei 'tely :idieeei'i a H a 1 1.11 o udmg; an. iiiciiiee suiiete in. and E3, end the pro cctingg portion U or reduced to mnrdthe centre oi the horror as so :is to oro'vide an um i- L nslu'igs iron; the

wil at this shown in Figure 3 strueied passage or ii.

,i ends or sides o the hziri l": the dischui' opening. Tl e sides of the i eline 34: are ii elined tox n .d, the opening; at 35.

it will he unde 'tood that the liner plates 16 lie let on the end walls (3 throughout are. except as to the portions 34, which i uclines lending to the door openin 1S).

makes the space in the barrel lit the ends heyo id the door ziveilahle to hoid the work and etthe some time disposes of all ed es nd sunpoi-ting surl'zices on the Me or the herrel h the charge of the Work or grouuet throi h door opening.

The tez'ideney oi the casting in dumping lo hung on the edges of the cylindrical dos ot the barrel. has b en diseusssed. The discharge of the castings is facilitated hf a chute which is shor'n in the form of a flat Well 36. that sing the curve on the side of the dump iug door opening 19 which is forward l the direction of rot-etioi The exact eonsi uetien. and method or producing this QllZ CCt n'iey he widely VZJTJ (Xl. The chute 3G shown is in the term oi" two fiat costings secured to the inside of the cylindrical Wall of the )errel in any suitable manner by radially placed, bolts 3'? having their heads 38 seated in suitable sockets in the inner taco of the enstin In other Words they present toward the inside oi. the barrel e. ilet chute surrzice adjacent the openii'rg inste i d of the corresponding sec-- tion of cylindrical well. One edge ll of the chute or tiller is iuuuedizitely adjacent and co insides with the edge ol the door opening.

The dumping door opening 19 is closed in the operation of the machine by a dumping door 4-5, the door having bars 46 extending in the direction of the eireinn'terei'iee oi? the cylinder. These hers project beyond the door at both ends, entering sockets 417 on the hottoin side 01" the door, as seen in Figure 1, the opposite ends of the hairs being; forked it P? 4318 so that they straddle projecting lugs ll) on the upper side of the door as seen in the some figure. Clhe forl-ied ends are held, in the eloscd po 'on oi? tie door, as shown, by pins suitable apertures in the 9;;

. 4- .i pessee belongs ,n to the side door or panel 14; dciirh undies the end oi? the herrix ace me than casing 1 also has 2} trout door opening 50 jlllllhi l'ttctl in Figiu'e ilthrough Whit-h the door in the drum zujrcessihle for the eijliuission. end fastening oi the liner plates and for filling. This door opening is larger than the d nnping and. filling opening 19 in the drzuving. This opening is closed in; it door eonsistiutr o'l en :irenute plat 5i hiugei. at the top at 54: and :1. ti. i1- plete 5 con in lili) -l to mid, dopendin zero the :n'rueie the connection heme h I hinh'es 53. 9 H T 571 a tin eperzit1o o": the :mrzidingg mu h 31' 7 5 ion of" the "rel carries '1 i when Cl i sto ppcd v "Willi 1f) dorm the poi o llU over the door open',

' wed] 'ely on the 'T I I "s on or innnedizitely :1. one the (1'' Mi that on the droppi off the per of the loud referred to an: over and supper by the door. the remain l oi? the loud ilr freely out oi? the opening, the filler or chute Th or eliminating:

e diunpine; r St; and ides El i-i, the e. c the door are dropped, iinnicdietel; on the opening oi the door end, the enstine's which sreothen Wise disposed flow from the hsrrel, complete ly emptying; the harrel'witheut raking, the

load at the beginning of r limiting sense, the scope of the invention being defined in the claims.

l fhat I claim and desire to secure by Lettcrs Patent 1. ln sand blast machine having a rotary barrel with means for introducing a sand blast at the center oi an axial end, an end liner plate for the barrel covering the inside surface 0?. the @Qpifili end, s l plate being in separate sections, means i removably securing each section to the'end "van, a cas ing for the machine, the casing and barrel having door openings to admit the sections, and a door in the casing adjacent the end of the barrel to give access to the fastening means rrom the outside.

2. In anabradin machine of the sand ty e, an outer casing having a door openir a barrel mounted for rotation therein, the oarie end to admit th and-a door open rel. llfi'lllf' an opening in blast-oi abrasive material, in in the cylindrical side with a door for ch iin the same, and end liner plates covering; the end walls surrounding the said end opening, said end liner plates being formed in separate sections with fastening means for removably securing each section in position in the barrel, the sections and door openings being of such size, shape and proportion that the sections oi? liner p rates may be introduced through the door openings in the case and barreh'and the old liner plates removed in the same way without dismantling the machine or barrel. the casing also having 2 opening opposite the end of the barrel. to give access to the fastening means fromoutside.

In an abradiug; machine of the sand blast type, a rotary barrel having an opening at the end for the admission of the sand blast, a nozzle cooperating i *ith said opening and adjustable to i c d' rection, the opening being' substantial y larger than the adjacentportion of the nozzle to permit free ad justment of the same,the barrel having end liner plates provided with an annular abuti'nent surrounding the opening to deflect the articles being abraded from the opening during the operation of the machine.

my invention in t. In a sand blast machine, a rotary barrel having an axial opening at the end to admit the sand blast, means directing the sand blast through said opening, said means being adjustable to determine the direction of the blast and the opening being substantially larger than the directing means to permit such adjustment, and an annular abutment surrounding the opening to deflect the arti- *les bein aln'aded therefrom.

5. a sand blast machine, a rotary barrel having a central opening at the end to admit abrasive, means directing a stream of 1 ive through said opening into the barrel, said. means being adjustable to determine the direction of the abrasive stream and the opening being substantially larger than said directing means to provide for said adjustni nt, the end Walls being concave from Within and having an abutment surrounding the- Si ward in iii, direction of rotation forming a chute to cause the articles being abraded rrccly from .e barrel when the barrel s stopped Wlih ll-Q door at the bottom and the latter is opened.

in an abradme machine of the sand blast type, a rotary cylindrical barrel having: door opening in the cylindrical side and fiat wall eliminating the curve of the cylinder at the side of the door opening, forming a chute to cause the articles being, abraded to flow ireely from t 1e barrel when the barrel stopped with the door at the bottom and the latter is opened. the chute comprising a removable casting and means for removably securing; the same to the inside of the cylinder in the position described.

8. A rotary sand blast barrel having a dumping: door opening in the side surface, and inclined Walls adjacent each end of the barrel leading castings to the door. and a flat Wall at the of the door, the latter providing a chute to assist the castings in flowing tr. in the barrel through the door opening.

9. In a rotary sand blast barrel having end Walls, side Walls with a dumping opening therein, the end Walls having portions on each corresponding side of the door opening and leading to the opening which are inclined at an angle to the remaining portion of the end walls to assist in the dumping operation, said portions terminating at the edge of said D- i ed by me at Hagerstown, Maryland, 

